diff options
| author | mark-yw.chen <mark-yw.chen@mediatek.com> | 2021-09-01 11:32:25 +0800 |
|---|---|---|
| committer | Marcel Holtmann <marcel@holtmann.org> | 2021-09-01 07:37:21 +0200 |
| commit | 5a87679ffd4436474cf9de1a7df9406906fdf148 (patch) | |
| tree | 268d01caa9e6e6c97ff43ac6c3f6230b9ad6945f /drivers/bluetooth/btusb.c | |
| parent | 1bff51ea59a9afb67d2dd78518ab0582a54a472c (diff) | |
| download | lwn-5a87679ffd4436474cf9de1a7df9406906fdf148.tar.gz lwn-5a87679ffd4436474cf9de1a7df9406906fdf148.zip | |
Bluetooth: btusb: Support public address configuration for MediaTek Chip.
The MediaTek chip support vendor specific HCI command(0xfc1a) to
change the public address. Add hdev->set_bdaddr handler for MediaTek
Chip. After doing a power cycle or MediaTek Bluetooth reset, BD_ADDR
will bring back the original one.
Signed-off-by: mark-yw.chen <mark-yw.chen@mediatek.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'drivers/bluetooth/btusb.c')
| -rw-r--r-- | drivers/bluetooth/btusb.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index 60d2fce59a71..41e7c9f28d82 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -2200,6 +2200,23 @@ struct btmtk_section_map { }; } __packed; +static int btusb_set_bdaddr_mtk(struct hci_dev *hdev, const bdaddr_t *bdaddr) +{ + struct sk_buff *skb; + long ret; + + skb = __hci_cmd_sync(hdev, 0xfc1a, sizeof(bdaddr), bdaddr, HCI_INIT_TIMEOUT); + if (IS_ERR(skb)) { + ret = PTR_ERR(skb); + bt_dev_err(hdev, "changing Mediatek device address failed (%ld)", + ret); + return ret; + } + kfree_skb(skb); + + return 0; +} + static void btusb_mtk_wmt_recv(struct urb *urb) { struct hci_dev *hdev = urb->context; @@ -3819,6 +3836,7 @@ static int btusb_probe(struct usb_interface *intf, hdev->shutdown = btusb_mtk_shutdown; hdev->manufacturer = 70; hdev->cmd_timeout = btusb_mtk_cmd_timeout; + hdev->set_bdaddr = btusb_set_bdaddr_mtk; set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks); data->recv_acl = btusb_recv_acl_mtk; } |